Loom.



C. B. CHASE.

LOOM.

APPLICATION FILED mus 30,1915.

1,282,378, Patented Oct. 22, 1918.

3 5HEETSSHEET I.

C. B. CHASE.

I LOOM. A PLICATION FILED JUNE 30.1915.

1,282,378., Patentd 001;. 22, 1918.

3 SHEETS-SHEET 2.

cm, M4010 urua. WASHINGION. n c.

C.B.CHASB LOOM.

I APPLICATION FILED JUNE 30.1915" 1,282,378a Patented Oct. 22, 1918.

3 $HEET$SHEET 3- ran sraaas earns oEEioEi.

CHARLES BURDEN CHASE, 0F FALL RIVER, MASSACHUSETTS;

LOOM.

To all whom it may concern. V

Be it known that I, CHARLES BORDEN CHASE, a citizen of the United States, residing at Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Looms, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates particularly to looms, and more particularly to power-driven looms having a jacquard mechanism for operating the pattern heddles, and a drop-box operated by a pattern chain to give the desired picks.

It is common practice, in the manufacture of bed spreads, to use a power-driven loom having a jacquard operated pattern warp, a

heald shaft warp; a coarse or pattern filling,

and a fine'or binder'filling; the order of the weave being two picks of coarse filling and two picks of fine or binder filling; the picks being determined by a chain controlling the operation of the shuttle drop-box. The bed spread resultingis described as of satin bed spread construction, the pattern appearing as if it were laid upon a plain ground.

'But inso far as applicant is aware, no bed spread of said construction, has ever had introduced into this plain ground, distinguishing or colored filling threads for the purpose of forming therein, for example, with'parallel distinguishing or colored warp threads, a cross barred design such as illustrated in some of the drawings referred to hereinafter. And further there is no loom, as at presentconstructed, adapted without substantial changes, to produce the above-def scribed bed spread, with such distinguishing filling thread or threads.

One of the objects of "my invention is to produce in the above-mentioned loom, mechanism whereby a colored or distinguishing filling thread may whenever and where ever required by the design, be substituted for a binding filling thread, and be woven into the ground.

It is obvious that if the colored filling thread were to be woven with great frequency, say every fourth pick, the shuttle drop-box could be easily andperfectly operated by a chain; but should the design require that the substitution of. the filling thread should be made only after one hundredor one thousand picks, a pattern chain Specification of Letters Patent. Patented Oct, 22, 1918, Application filed Iune 30, 1915. Serial N 0. 37,154. v I

would have to be of such inordinate length and weight, alone,-as to render itself utterly useless.

To cover such a contingency, a jacquard card, corresponding to the picks of colored filling required, is suitably punched, and by means of levers, links, eto., the jacquard knife or grifi' instead of the pattern chain, operates the shuttle drop-box; hence between the Jacquard indication,and that of the pattern chain, the shuttle drop-box presents to the race the proper shuttles of course, fine and colored filling threads, in the manner required by the design, whether the colored filling thread be introduced only once or any other number of times, provided the pattern chain of itself could not practically bring about'the fulfilment of this requirement.

In the drawings illustrating the principles of my invention,'andthe best modes now known to me of embodying the same,

Figure 1 shows the lower left-hand quarter of a design for a bed spread which embraces one feature of my invention, viz', distinguishing colored filling threads, that can not be practically indicated by a pattern chain. Fig. 2 is the reversed portion a, b, of the above design, actually laid out on pointed paper to show the impracticability of using only a patternchain to indicate the distinguishing "colored filling thread required by the design.

Fig. 3 represents diagrammatically the mechanism required and invented by me, for operating the drop-box to weave a bed spread having one or more colored filling threads that cannot be. practicallyindicated warp, andthe other the heald shaft warp;

and two kinds of filling, one coarse or patternjfilling, and a fine or binder filling; the order of weave being two picks of coarse and two picks of fine." In other Words, as will be understood by those skilled in the art, the bedspreadhere shown is what is wen know as satin bedspread construction. W 7 All of the filling threads except those distinguished asbycoloflare controlled by the pattern chain 5, Fig. 3, of the box motion, whose construction is well understood but maybe brieflydescribed as follows: Power segment gears 6, 7, operate in opposite directions while vibrator gears 8, 9,"locate'd between the segment gears, have teeth and spaces to oause? them to revolveornot, as

' vibrator lever 18", in' the usual way. Al'ev'er' the 'teethor spaces are adj acenti' to the teetlf or spaces on the power segment gear. "These vibrator gears '8, 9; are mounted upon studs 10, I0--"fixed*to the nuan e-le e s 1-1, 123" and the latter in turnfaresupportedat one end by a stud 13 attached tog't-he loom; the

other "end 0f one lever 11' being connected 23 provided with a give-way oi'nt d, is 'pi'vota'lly .connected with the twoflevers 20, 20?, by two parallel'conne'otor's a, Land also with the lower end of theibo'x lifting ro'd '22, e

the topof which aresup ported'shuttle boxes" 21, 21 and 2 1", each to receive a shuttleire spectively for'coa'rs'e fillingfine fillingfand coloredor' distinguishing thread! Obviously, the:1 3 acts as a lever the first or the' 'secon' d order-{to raise the shuttleboxrod"22;accordingly as it is op-"' erated by the bell crank lever 2Q"andfthe connecting rod e'"with"fulcrumat' (Z, or by V the bell "crank lever 201 and the con netting rodff, withf fulcr'uin atjg. In the former case,"the fulcrum beingfat b, and in thelatter, at the pivot "g,'"thelever23 byv whichsoever connecting rod "operateid, l1as, for its fulcrum, the pivot at the bottom of the other connecting rod; andthepivots d and g hear such relations to each" other that when theupper arm '6 Olfthebe'll crank lever 20 is drawn back toward itsvibr'ator gear 8 by the vibrator bar 17, therod QZii'Sflift-dn distanceequ'al to one box,a n d whenthe bell crank lever'20* isdrawn'bac'kby its vibrator bar 18 andthe vibrator gear 9, the lifting rod 22 is" raised 'a 'di'stancefequal totwo;

oxes. While e ne ing "rods 6, f,

swing on their "pivots ateitherend, waysfnot shown in this diagrammatic Fig, '3,f"cQn' vert their inoti'ons'into thereci'procatin'g mp;

tic-n requiredbythebox'rod.

By this structure the shuttle box rod may be moved from a stated "position a distance equal to one or two boxes, and required to We ve the edspread herein described.

The other vibrator lever 12 is connected as by a single wire 24:, bell crank lever 25, Fig. 5, and roller 26, to a drop box hook 27 and other parts of a jacquard mechanism 28,54) propriate d adapted by me, to accomplish" one"o'ftheobjects of my invention. This j q ech nism. 28 has s use' card cylinder 29, hedd'lehbohs 30., needles l" ee bl s 2; 3.3 pera the hool rs; 'als aserie iofjcards 34$ for operating such pattern lieddles 3'5"asfarerequired 8 0 the' des'ign. Itis'to"be'reineniberedfheiffi that "throu h suitable but l understate; appm sno hd h; ife ii new nism operatesupon' eachpiol'rfwhile th 1 v V tern chain 5 is only' on other 10 z. A' reference to the design shown in Fig. 2, Where he p'a-e etwe adja ent para lel lines indicates fiHing'T'thrQa' fa r'i df co lf isp'ol'i'ding picks, shows, fofrje 'x'aii ple', that the colored filling threads 2,25, '2", 27", 12f"! are i'ftroduced on thefoll'owing". piclis z 2,,the 5th and 6th; 2, the' 89th and 90th; the] 97th and 98 th; 2'.,'the"1'8lstan,dl' r e 89th nd 1 c; Wh le. the w coarse'and two finef pickslrepeatfevefyffiftli pick and are controlled bylltlie 'illterii e 1b 7 and ro'llsforiiiing the'chai p" i5,as e fpo nl d t; he '"b ti utd-. l re's j. filling picks are controlled by'fthejfollowingli described mechanisin;i%*

In thej'e r'ldfportion, ofv each card, as 36, of the pattern com t-ending; to the, picks calling for a c'olored'ffilling unseat; the 5th andj6th "the 89th; andi90thetc pu11cl1ed;a"drop -boxf liole; 3 8,110 receiye' drop-box needle 39 whichcontrolsthe drop btjx'hook ezsoihetth" latter,islliffdbjla" grifi'; blade 33 when 11a drop-box h le 33 is, presented {to thejne'edlej' 39, and consequently, "thevibratoliflevei '12 connected to'thjhoiok'ez, are; d together, withthe vibrator gear 91;e11 eh;"iiirim);'gh He" segmentgear'ti, vibrator bar 18' andfconn (Stf ing box levers20 raises' or lowers, 'astliej may bef,'thedrop-boxsovthatitheshuttleico taining the colored filling thread: is in line i with the race '40,

To be more specific, when the box mechanism is V inactive, theffcliaiii lever 15 is; siii plfyl 12o A resting upon abaras i6;'i'n"]Tig.;3,fa i d the? shuttle box 21 for, say, co a rs'e fillingtlii'ead, 1s proper position I in relation to the rage;

the vibrator 17 moves inward, causing the bell crank lever 20, through the connecting rod 6, to move the lifting lever 23 about d as a fulcrum, and raise the next box 21 containing fine filling thread, into position opposite the race-way. After two picks of fine filling, the boxes are returned to a normal position by the lower power gear 7, as is the case after every two picks of the loom. But it is while chain lever 15 is, as now, on a bar 16 of the chain, that the card, as 36, of the jacquard mechanism, representing the fifth pick, is in position, and its drop-box hole 38 receives the drop-box needle 39. When this happens, the grifi' blade 33 engages and lifts the drop-box hook 27, and by means of bell crank lever 25 and wire 24:, raises the drop-box vibrator bar 18, and its gear 9, the latter engaging the power segment gear 6. The vibrator bar 18 is moved together with the bell crank lever 20*, the drop-box lever 23 is moved about its fulcrum g, viz, the other pivotal connection between the lifting lever 23 and the connecting rod 6, and the box is raised two box positlons, so that box 21 having the shuttle with colored filling thread, is in position to be delivered by the fifth pick to the race-way; the lever 15 still restin on its chain bar 16, and the vibrator rod 1%, bell crank lever 20 and connecting rod 6 remaining stationary by reason of lock-knife mechanism, not shown but well understood. The 6th pick for the colored thread is brought about by the repetition of this operation, due to the needle hole 38 in the next card 37. For the 7th and 8th and the succeeding picks, until the 89th and 90th are reached, the alternate bars and rolls of the chain have the entire control of the coarse and the fine filling threads, and none of the jacquard cards operating the pattern heddles and corresponding to picks 7 to 88 inclusive has a drop-box needle hole, hence the drop-box mechanism, during this period, is inoperative in so far as moving the drop-box into position for delivering the filling thread to the race-way. However, the

cards for the 89th and 90th picks which deliver the colored filling, are each provided with a drop-box hole, and in a manner already pointed out, set in operation the dropbox mechanism which delivers the two picks of colored thread in place of the two picks of plain filling that, but for the operation of the needle holes and connecting apparatus of the jacquard mechanism, would have resulted from the engagement of the chain lever with the bar rather than the roll of the pattern chain.

The method of weaving the subsequent filling threads required by the design is the same as that already described and no further description of it in detail seems neces sary.

It is to be understood that applicant for the sake of clearness has omitted details of structure which those skilled in the art must know are necessarily present, such, for example, as lock-knife mechanism to engage and keep the vibrating levers in stationary position while the segment gears revolve; or duplicate mechanism for raising and lowering the shuttle boxes at the other end of the loom, with obviously unimportant modifications.

From what has been said, it is plain that by providing the proper cards of the jacquard mechanism with independent dropbox holes and suitably controlled drop-box mechanism, one or more colored filling threads may be woven by picks utterly beyond the control of the pattern chain.

Desiring to protect my invention in the broadest manner legally possible,

What I claim is:

1. In a loom having a jacquard mechanism and a drop-box for shuttles for weaving backed fabrics, the combination for timing and setting into operation the power means for operating the drop-box comprising vibrated gear mechanism operatively connected to the drop-box, a pattern chain operatively connected to the vibrated gear mechanism, a drop-box hook, a jacquard card cylinder, a jacquard needle operatively connected with said drop-box hook for operating the drop-box, a needle card being one of the jacquard cards, all adapted to introduce into the design of the fabric a distinguishing filling thread after the completion of a number of picks in each repeat of so much of the filling design as is controlled by the movement of the pattern chain. 7

2. A loom comprising the ordinary jacquard mechanism and pattern chain, means controlled by the pattern chain for weaving the plain filling threads, a drop-b0x, a dropbox needle, operative connections between the drop-box needle and the drop-box, means upon the jacquard cards of the jacquard mechanism comprising apertures for operating said drop-box to substitute a distinguishing filling thread for the plain filling thread.

In testimony whereof I hereunto aflix my signature 1n the presence of two witnesses.

CHARLES BORDEN CHASE.

Witnesses:

LODIVINE LEMOINE, RICHARD P. BORDEN.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of latents, Washington, D. C. 

